Leopold ktttter



Sept. 6, 1932. KUTTER FOUNTAIN PEN Filed Jan. 25,' 1932 Pareafearset. 6, v1932 l LEOPOLD KUTTER, F VIENNA, AUSTRIA FOUNTAIN PEN Application led January 25, 1932, Serial No. 588,762, and in Germany February 6, 1931.

This invention relates to a fountain-pen holder formed of two tubes slidable telescopically, of which the' outer tube carries a closing flap which is automatically opened when,

the inner tube carrying the nib (pen) is pushed out, and automatically closed when said tube is pushed back.

The constructions hitherto used for this purpose are very complicated -on account of their `requiring rather a number-of parts and the mounting of the same, for which latter end also either the provision of deep grooves or channels or a lengthening of the fountainpen holder is necessary.

The invention solves the problem of automatically opening and closing the closing Hap in a much simpler way in the manner of a towing device and requires therefor only a slightly S-like curved leafspring engaging eccentrically with the closing Hap and moving in a longitudinal groove of the outer tube,

and being operated by means of its nose-likel end by off-set parts or stops of the inner tube. g This leaf spring forms the towing device 2 -opening thev opening flap as well as closing it, and, at the same time, produces i the spring action necessary forthe working.

The accompanying drawing illustrates two constructional examples of the invention.

3 Fig. 1 is a partly longitudinal section of one constructional example with the nib drawn back, and

Fig. 2 a longitudinal section of the whole with the nib pushed out;

Figs. 3 to 5 show details. Figs. 6 and 7 are partly longitudinal sections of the other cons'tructional example with the nib drawn back and the nib pushed out respectively.

Figs. 8 to 11 show details.-

The fountain-pen holder according to`Figs. 1 and 2 consists of the outer tube 1 and the inner tube 2. The outer tube 1 carries the closing flap 15, as well as a guiding groove 4 arranged on the inner side. The inner tube 2 has a longer sheet metal sleeve 5 which carries'the ink guide 10 and the nib 9 at one end, and can be closed by a cap 7 at the other.

end. The tube 2, 5 carries the tubular ink 60 holder 11 and a flat spring 12. The flat spring is provided at the inner end with a pin 13 and at the end which is accessible when the cap 7 is screwed off with a press knob 12. The pin 13 preferably provided with a flange 13 on account of the elasticity 55 of the ink holder 11, passes through a slot into the groove 4 and thus forms the guide for the two tubes 1 and 2, 5. When the press button 12 is pressed inwards, the ink holder 11 is compressed by the leaf spring 12 and 6o the springs 12; when the press button is re leased the ink holder returns to its original shape this effect is used for drawing in ink.

The present invention consists in the following: The closing flap 15 can swing about the hinge 21 on a cap 20 placed on the outer tube. Eccentrically to the hinge 21, that is at 22, the closing flap 15 is engaged by a light curved leaf spring 23 approximately in an inverted S-shape which is principally guided (mounted) in a longitudinal groove 24 of the tube 1 and at the free end is formed with a kind of rounded nose 25. The leaf spring 23 `co-operates with a part 5 of thesleeve 5 which on account of vits diameter being rather larger than that of the sleeve 5, is guided rather tightly inthe tube 1. This part 5 is offset inwardly at an angle at 26 and an oblique part 27 adjoinsthis offset part so that an acute angle is formed.

The action of the device is as follows:

In Fig. 1 the leaf spring 23 is moderately pressed down by the part 5 and the spring nose bears against thev outside of 5 If the inner tube 2, 5, 5', is pushed forward from the position of Fig. 1 tov that according to Fig. 2 for pushing out the nib the part 5 depresses the part of the leaf spring 23 outside the groove 24 still further and in consequence of the spring tension caused thereby, the end 25 of the leaf spring, which has in the meantime been released, moves rapidly against the oblique part 27 (Fig. 4) which is thereby enabled to carry the leaf spring 23 with it and to open the closing .flap 15 (Fig. 2). The leaf spring and its curvature, therefore make it possible to open'the -,closing flap 15v through 90 but a smaller opening angle is used as shown inv Fig. 2.j When the tube 2," 5, 5 is pushed further the-nose 25 runs-ineffectively and almost without friction on the outside of the tube 5 which is made smaller than the part 5 (Fig. 2).

When the tube 2, 5, 5", is pushed back the closing Hap 15 at first remalns open. Only when the nose 25 engages with the offset part 26 is the leaf spring 23 carried along (Fig. 5) and therebythe closing flap 15 closed. J ust before the tube 2, 5 has reached the end position given by the guide 13, 4, the nose 25 runs on the thicker part 5 (Fig. 1), and the arch of the leaf spring/at the height of the nib can bul e out to a greater extent. Y

he part 5 fitting rather tightly in the tube 1 has also the object of holding, the tubes 1 and 2, 5, securely in position when the fountain-pen is not in use (Fig. 1). In order, however, that the tight fit may extend only over a small part (short extent) of the whole displacement, the tube 1 at the front near the nib is widened a little in its inside diameter over a certain length 28. The sliding of the axis, that is with an widened onlg two tubes then proceeds easily when the part 5 slides over the part' 28, which is the case when the closing flap 15 is open. For securing the two tubes 1 and 2, 5, in the position of use of the fountain-pen holder, the friction which the leaf spring 23 in this position of the parts and the pin 13 in its oove 4 or in the slot part 14 cause is su cient. In addition an increased friction or gripping between the tubes in this position can be produced, for example by providing at the end of the tube 2 akind of cone 29 which is easily pressed into the tube 1. In this way at the same time the limitation of the motion of the tubes 1 and 2, 5, when the Inib is pushed out is given, and this limitation of motion takes place before the offset part 30 between the parts 2 and 5, engages the offset part 31 of the tube 1. The pin 13 and the groove 4 prevent the relative rotation of the tubes 1 and 2, 5, and limit their motion when the nib is pushed in (Fig. 1).

The slot 14 as shown in Fig. 3 is preferably so formed that over a large part of its length at 14 it is of equal width and is gradually t the short end 14 further from the ni ta eous for assembling the fountainen.

he fountain-pen holder is assem led by the tube 2, 5, being pushed into the tube 1 provided with a closing Hap 15 and leaf spring 23 in the correct initial position and being slid in the direction of the arrow 32 (Fig. 2)

until it reaches nearly the position illustrated, when the flap 15 will open, if it is not already open. Then the flat spring`12-in a position turned through 180 about its longitudinal inwardly directed pin 13, is introduced into .the tube 2, 5, between the'wall of the tube and the ink holder 11, so far that the pin 13 reaches the wider part of the slot 14". The correct position for introducing the :dat spring 12 in the circumfer- This construction is advannemesi Iuse. The pin 13 has moved along the slot 14 ig. 1, also that after to its end, being guided by its ange 13 and finally comes into engagement with the off- 'set part 31.

In order to take 'the fountain-pen apart for purpose of repair or the like, the tube-2, 5, is pushed into the position shown 1n Fig. 2 and after the cap 7 hasbeen removed, the

flat spring 12 is withdrawn until the pin 13 reaches the widened part of the slot 14". rI`he flat spring is then turned through 180 and completely withdrawn from the tube 2, 5, after which the tube 2, 5, can be completely withdrawn from the tube 1.

In the second constructional example, beside the automatic opening and closing ofthe closing iap, also theI securing of the fiap in its closing position is effected. For this purpose, the nose-like end of the leaf spring cooperates with a cross-notch of the inner tube, and, further, means are provided between the two slidable tubes for securing the inner tube pushed back in the outer tube. This securing can be effected by variousmeans, and is suitably automatically attained by means of an elastic roll-shaped sto of the inner tube cooperating with an o set part of the outer tube, that is at the end of the sliding way of` both tubes.

In Figs.- 6 and 7 the closing fiap 15, as in Figs. 1 and 2, is pivotable about the hinge 21,',

merges on the other sideinto a shallow axially extending deepening (see es eciall. Fi s. 8 and 9). The part 5-of the inlher tube 2,g5, is further provided with elastic roll-shaped stops 34, which, lfor instance, may be formed by pressing outwards the material of the logitudinal springs 35 cut in the part 5. These stops co-actwith an offset part 31 of the outer tube 1 (see particularly Fig. 10).

The action of the device is as follows:

In Fig. 7, with the nib 9 pushed out, the leaf spring 231is moderately pressed down in the groove 24 by the sleeve 5 and the inlr guide 10 of the inner tube 2, 5,' and the spring nose 25 flies in the shallow deepening 33 owing to the spring action of the leaf spring 23.

If the inner tube 2, 5, is pushed back the n 25 fal closin Hap 15 will remain open till the nose ls into the notch 23 (see particularly Fig. 9). At this moment the leaf spring 23 is carried along with the inner tube, and, thereby, the closmg flap 15 is pivoted into its closing position. At the end of lthis move the elastic stops 34 catch behind the offset part 31, in the manner shown in Figs. 6 and 10, and, at the same time, the guiding pin 13 of the inner tube 2, 5, bears against the end of the guiding groove 4 of the outer tube 1. The consequence of these two eects is an elastic securing of .the inner tube 2, 5, within the outer tube 1 and, at the same time, a slight straightening (longitudinal tensioning) of the curved leaf spring 23.while the v closing flap 15 is already closed, whereby the latter is secured to a certain exertion of strength against being opened.

On displacing the inner tube 2, 5, out of the position according to Fig. 6 into the position according to Fig. 7, the securing is releasedowing to the circumstance that the elastic stops 34 bend inwards `and enter over P the offset part 31 into the narrower part of the tube 1 in which they effect such a friction that they securely hold the tubes 1 and 2, 5 in any position relative to each other. Thereby also the nose 25-after release of the spring 23, that will say after al short way within the notch 32-comes to bear against lthe opposite side of the notch whereby the closing flap 15 is opened. On further pushing out the inner tube 2, 5 the nose 25 leaves the notch `32 land slides along the shallow deepening 33.

The extension of the spring 35 beyond the stop 34 serves the purpose tov prevent the exertitn of a pressure on the ink holder within the u e. I

Fig. 11 shows a part'of the tube 1 according to the illustration in Fig. 6. It is shown that at the end4 of the grooves 24 and 4 a ring 36.,.is inserted andfastenedwhich forms, on the one hand, the above mentioned offset part 31 and, on the other hand a limitation,

in particular of the groove 4. The object of this arrangement is the easy andaccurate manufacturing of the grooves 24, 4 by means of milling tools and the exact determination o f the axial distance 37 of the offset part 31 from the stop or rest 38 for the 4pin 13 at the end of the sliding way of the two tubes.

What I claim is:

l. Fountain-pen holder consisting of two telescopically slidable tubes of which the 1, characterized by the feature that the inner inner tube pushed out and automatically closed when said tube is pushed back.

2. Fountain-pen holder as claimed in claim 1, characterized by the feature that the nose-l like end of the leaf spring co-operates with an` olf-set part and an oblique part of the inner tube.

3. Fountain-pen holder as claimed in claim 1, characterized by the feature, that the noselike end of thevleaf spring co-operates with a cross-notch of the inner tube, and means are provided between the two slidable tubes for securing the inner tube pushed back in the outer tube, so that, beside the automatic opening and closing of the closing flap, also the securing of the flap in its closing position is effected, on the inner tube being secured. in the outer tube.

4. Fountain-pen holder as claimed in claim tube has a cross-notch for the -noselikelen of the leaf spring and at least one elastic p roll-shaped stop which co-acts with an off-'set i art of the outer tube at the outer end of the sliding way of the two tubes.

. 5. Fountain-pen holder as claimed in claim l, characterized in that the inner tube carrles a cross-notch for the nose-like end of the leaf spring, said notch beingv somewhat highery `at the one side and merging on the other side into a shallow axially extending deepening.

6. Fountain-pen holder as claimed in claim 1, characterized in that the inner tube has a guiding pin, and the outer tube a correspondmg guidlng groove at the end of which latter a ring is inserted.

In witness whereof I have hereunto signed my name.

LEOPOLD KUTTER.

inner tube carries the nib (pen) and the outer tube has a closing flap and receives a slightly S-like curved leaf-spring which is lguided in a longitudinal groove of the outer tube, eccentrically engages the closing flap and has a noseflike end which cor-operates with stops of the inner tube'in such a manner that the clos- 1ng iap 1s automatically opened when the 

